5 
Supplement to “ Nature,” March 31, 1923 
vil 

d Technology 
Adams, H. Structural Design in Theory and Practice. 
Second edition. Med. 8vo. Pp. 268. (London: Con- 
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Bacon, R. F., and Hamor, W. A. American Fuels. 
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Ltd., 1923.) 60s. 
Bresson, P. Manuel du prospecteur. (Bibliothéque 
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illiére et fils, 1923.) 12 francs net.* 
Bryant, R. C. Lumber: its Manufacture and Dis- 
tribution. Med. 8vo. Pp. xxi+539. (New York: J. 
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Campana, C. R., et Turck, R. Métallurgie et 
sidérurgie en Australie. 8vo. Pp. viii+208. (Paris: 
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1922. 
Caquas, J.-M. Organisation administrative indus- 
trielle appliquée a la construction mécanique en petite 
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1922.) 10 francs. 
ret, L., et Lehner, S. Manuel pratique de la 
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(Collection Tignol.) 3 édition frangaise. Fcap. 8vo. Pp. 
372. (Paris: Gauthier-Villars et Cie, 1923.) 12 
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Dumesnil, P. Fabrication de la poussitre blanche : 
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Eckel, E. C. Cements, Limes, and Plasters: their 
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655. (New York: J. Wiley and Sons, Inc.; London: 
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dustries.) Cr. 8vo. Pp. ix+118. (London: Sir I. 
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Lozach, P. Agglomérés et pierres artificielles: Con- 
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struction et de travaux publics, 1922.) 
Marsh, J. E. Suggestions for the Prevention of the 
Decay of Building Stone. Demy 8vo. Pp.20. (Oxford: 
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Osann, B. Lehrbuch der Eisen- und Stahlgiesserei. 
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Auflage. Large 8vo. Pp. xi+693. (Leipzig: W. Engel- 
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Plowman, G. T. Etching and Other Graphic Arts: 
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Prat, D. de. Nouveau Manuel complet de filatute. 
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Scherer, R. Die Kreide, deren Vorkommen, Gewin- 
nung und Verwertung. (Chemische-technische Bibliothek, 
Band 372.) (Wien und Leipzig: A. Hartleben, 1922.) 
Soper, E. K., and Osbon, C. C. The Occurrence 
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Luyten, W. J. Observations of Variable Stars. 
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1922.)* 
Newcomb, S. Astronomy for Everybody: a Popular 
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Rhijn, P. J. van. On the Mean Parallax of Stars of 
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Galactic Latitude for each Special Class. (Publications 
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Sande Bakhuyzen, H. G. van de. Note sur la 
réfraction a l’intérieur d’une lunette horizontale dont 
la température varie proportionnellement a la hauteur. 
Détermination des constantes de la flexion du cercle 
méridien. (Annalen van de Sterrewacht te Leiden, Deel 
13, Stuk 1.) Med. 4to. Pp. 24. (Haarlem: Joh. 
Enschedé en Zoon, 1921.) * 
